Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEA412A Mapping and Delivery Guide
Pre-treat aluminium alloy surfaces

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEA412A - Pre-treat aluminium alloy surfaces
Description This unit covers the competencies required to pre-treat aircraft and aircraft component aluminium alloy surfaces prior to application of surface coatings. No licensing requirements apply to this unit at the time of publication, but compliance with legislation and regulations governing handling and disposal of hazardous materials is included in the unit. This unit is used in workplaces that operate under the airworthiness regulatory systems of the ADF and CASA.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit requires application of skills and knowledge relating to the application of chemical conversion coatings to aluminium alloy surfaces of aircraft and aircraft components.Applications include fixed and rotary wing aircraft and aircraft components with aluminium alloy surfaces.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites MEA101B Interpret occupational health and safety practices in aviation maintenanceMEA103B Plan and organise aviation maintenance work activityMEA105C Apply quality standards applicable to aviation maintenance processesMEA107B Interpret and use aviation maintenance industry manuals and specificationsMEA108B Complete aviation maintenance industry documentationMEA109B Perform basic hand skills, standard trade practices and fundamentals in aviation maintenance Not applicable
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Prepare surfaces for application of chemical conversion coating
  • The required pre-treatment task is identified from maintenance documentation and enterprise procedures
  • Enterprise procedures and/or process specifications are used to identify required materials and tools
  • Aircraft or component identification is matched with relevant maintenance documentation
  • OHS requirements are identified and complied with and PPE is checked for correct fit and function
  • Common surface soils are removed in accordance with enterprise procedures and/or process specifications
  • Masking is completed on areas where pre-treatment is not required
  • Aluminium alloy substrate is prepared for application of conversion coating in accordance with enterprise procedures and/or process specifications
       
Element: Apply chemical conversion coating
  • The correct environment for conversion coating application is established and maintained
  • The applicable chemical conversion coating is applied
  • Masking is removed and the aircraft or component is left in a suitable condition for the next task
  • Completion of the pre-treatment process is documented in accordance with enterprise procedures
       
Element: Clean up work area and maintain equipment
  • Material that can be reused is collected and correctly stored
  • Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures
  • Equipment is cleaned in accordance with enterprise procedures or manufacturer's instructions
  • Equipment is checked for serviceability and unserviceable items are dealt with in accordance with enterprise procedures
  • Tools are cleaned and maintained in accordance with enterprise procedures
  • Work area is cleaned and inspected for serviceable condition
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to pre-treat aluminium alloy surfaces in accordance with specified procedures while using the correct PPE and observing all relevant safety precautions and environmental protection processes.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The underlying skills inherent in this unit should be transferable across a range of pre-treatment tasks associated with aircraft and aircraft component aluminium alloy surfaces. It is essential that applicable processes, cleanliness requirements and safety precautions, including the correct use of PPE, and application of environmental protection procedures are fully observed, understood and complied with. Ability to interpret pre-treatment procedures and apply them in practice is critical.

Evidence of transferability of skills and knowledge related to pre-treatment is essential. This is to be demonstrated through application of conversion coatings to aluminium alloy surfaces across a range of aircraft and component tasks. The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements of the unit of competency are being achieved under routine supervision on a representative range of pre-treatment tasks. This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide.

Context of and specific resources for assessment

Competency should be assessed in the workplace or simulated workplace using materials, tools and equipment specified in the maintenance manuals and applicable procedures. It is also expected that general and special purpose tools and ground support equipment would be used where appropriate.

Method of assessment

Guidance information for assessment

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Look for evidence that confirms skills in:

applying OHS procedures relating to pre-treatment of aluminium alloy substrates, including the selection and correct use of PPE

applying masking

preparing for chemical conversion coating

water break testing

application of specified pre-treatment process

water break re-testing

using MSDS

selecting and using applicable chemical conversion coating

correctly disposing of waste materials

cleaning and maintaining equipment and tools

Required knowledge

Look for evidence that confirms knowledge of:

relevant enterprise procedures and/or process specifications

OHS procedures relating to aluminium alloy pre-treatment processes, including PPE

how to obtain MSDS

types of masking and barrier materials

types of pre-treatment processes

environmental legislation and regulations relating to the storage, use and disposal of hazardous materials

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Application of this unit may relate to:

Application of this unit may relate to:

scheduled or unscheduled maintenance

individual or team-related activities

Procedures and requirements

Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

OHS requirements

OHS requirements are identified from relevant:

state/territory/Commonwealth OHS legislation, regulations and codes

procedures manual

safety manual

work instructions

maintenance organisation manual

MSDS

Defence regulations and instructions

standing instructions

Common surface soils

Common surface soils may include:

paint

dirt

grease

oils

fuel

adhesives

Legislative, regulatory and enterprise procedures

Legislative, regulatory and enterprise procedures may include:

state/territory/Commonwealth environmental legislation, regulations and codes for the storage and disposal of hazardous and toxic materials

MSDS

maintenance organisation manual

procedures manual

work instructions

relevant Defence regulations and instructions

standing instructions

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
The required pre-treatment task is identified from maintenance documentation and enterprise procedures 
Enterprise procedures and/or process specifications are used to identify required materials and tools 
Aircraft or component identification is matched with relevant maintenance documentation 
OHS requirements are identified and complied with and PPE is checked for correct fit and function 
Common surface soils are removed in accordance with enterprise procedures and/or process specifications 
Masking is completed on areas where pre-treatment is not required 
Aluminium alloy substrate is prepared for application of conversion coating in accordance with enterprise procedures and/or process specifications 
The correct environment for conversion coating application is established and maintained 
The applicable chemical conversion coating is applied 
Masking is removed and the aircraft or component is left in a suitable condition for the next task 
Completion of the pre-treatment process is documented in accordance with enterprise procedures 
Material that can be reused is collected and correctly stored 
Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures 
Equipment is cleaned in accordance with enterprise procedures or manufacturer's instructions 
Equipment is checked for serviceability and unserviceable items are dealt with in accordance with enterprise procedures 
Tools are cleaned and maintained in accordance with enterprise procedures 
Work area is cleaned and inspected for serviceable condition 

Forms

Assessment Cover Sheet

MEA412A - Pre-treat aluminium alloy surfaces
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MEA412A - Pre-treat aluminium alloy surfaces

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: